placeholder

Finding placeholders and put then in an array

由 早过忘川 提交于 2019-12-08 06:03:48
问题 In my string I have place holders like: ##NEWSLETTER## , ##FOOTER# ##GOOGLEANALYTICS## etc. Each of those placeholders is delimited by: ## I want to find each of thos placeholders and put them in an array. The tricky part is that what's inside the ## delimiters can be anything. 回答1: Try this: <?php $s = "asdff ##HI## asdsad ##TEST## asdsadsadad"; preg_match_all("~##([^#]+)##~", $s, $result); var_dump($result[1]); prints: array(2) { [0]=> string(2) "HI" [1]=> string(4) "TEST" } 回答2: you can

clearing input placeholder in iOS5

由 风格不统一 提交于 2019-12-08 03:56:47
问题 I noticed that in iOS5, input placeholder text doesn't clear automatically on focus. I tried this jquery function but it's not working: $('input[type="number"]').focus(function(){ $('this').attr('placeholder',''); }); 回答1: It looks to me the problem lies here $('this').attr('placeholder',''); Try replacing: $('this') With $(this) 来源： https://stackoverflow.com/questions/8282348/clearing-input-placeholder-in-ios5

tf.sparse_placeholder

由 ⅰ亾dé卋堺 提交于 2019-12-07 17:06:04
tf.sparse_placeholder是tensorflow中稀疏矩阵占位符，主要用于计算CTC的loss。从名字看，就是一个占位符用的，需要在run的时候喂数据。另外TF中还有一个稀疏矩阵张量 tf.SparseTensor。我在使用的时候一直报下面的错： [feed.indices, feed.values, feed.dense_shape], feed_val)), TypeError: zip argument #2 must support iteration 表示很尴尬，根据出错信息可以看出是这个稀疏矩阵出错了，我在feed的时候喂的是 tf.SparseTensor(indices=indices, values=values, dense_shape=shape) 给我报错是什么意思？看 tf.sparse_placeholder 的源码，如下： 恍然大悟，给tf.sparse_placeholder喂数据的时候应该直接填充 (indices, values, shape)，或者使用 tf.SparseTensorValue。如果使用tf.SparseTensor，需要按照下面的形式。 还是不熟悉啊！！！ 来源： CSDN 作者： 二加三等于五 链接： https://blog.csdn.net/haveanybody/article/details

Use Font Awesome (5) icon in input placeholder text

由 做~自己de王妃 提交于 2019-12-07 15:51:47
I've come across many ways to solve this using Font Awesome < 5, but I can't seem to solve this in any way using Font Awesome 5. This is how many resources point to adding a Font Awesome icon in placeholder text. <input style="font-family:FontAwesome !important" type="text" placeholder="&#xf167"> Remember to not use the general "Font Awesome 5" font family, you need to specifically end with the branch of icons you're working with. Here i am working the "Brands" category. <input style="font-family:'Font Awesome 5 Brands' !important" type="text" placeholder="&#xf167"> For a more sophisticated

ModelMetadata.Watermark and MVC View Models

由 ∥☆過路亽．° 提交于 2019-12-07 06:08:52
问题 I'm struggling to display a watermark (so called placeholder) on my MVC3 form inputs. There is already few posts down here talking including the quite focused one here: Html5 Placeholders with .NET MVC 3 Razor EditorFor extension? In these posts, advice is made to create tweaked html.TextBox templates. In my case, my asset is that I should not need any editor template as I'm tweaking them inline. Better than long talks, here is the relevant part of the actual code: ~/Models/myModel.cs

让人“蛋碎”的ie兼容问题

由 不问归期 提交于 2019-12-07 02:16:41
前段时间的一个项目，要做ie8及以上的兼容，那个做的我真的是蛋疼，菊花紧啊。。。。 当时就想问问微软ie的部门，你们到底想干虾米，这不是要逼死前段工程师吗。。。。 然后去Google上面找了好多关于兼容的文档，然后归类了一些，希望有跟我一样碰到这种问题的朋友们能够得到帮助，嘿嘿 以下我总结简单总结了几条： 不管你是不是做兼容，做为一个前端工程师，都要养成一个习惯，那就是用类（class）来控制样式（css），用id来控制脚本（JavaScript），那这是为什么呢？ 道理其实很简单，在ie8以下的浏览器中，对于以下 #first #second{ color：red； } 这种写法是找不到这个元素的，所以有时候你会发现在google浏览器里很和平的事情，到了ie中这个css就完全消失了。 还有控制样式为什么要用id呢？因为id获取到元素的步骤是最节约资源的，而且也是最直接的，所以各位新手小白前端们， 记住这个重要的步骤吧，肯定会少走很多弯路的 2. 因为要兼容ie8，而ie8是不支持css3.0的，有可能你的第一反应是，那就不用那些比较酷炫的效果喽，然而如果你只是这么想，那就图样了。。。 在css2.0中，对于css那些比较好用的选择器，也是不支持的，举个最简单的例子哈，css2.0是支持：first-child这个选择器的，而：last-child是不支持的，是不是很无语

placeholder vs. data-placeholder, in HTML

由 妖精的绣舞 提交于 2019-12-06 22:08:05
问题 What's the difference between the two? placeholder vs. data-placeholder? They both seem to produce the same results . <select data-placeholder="Enter name"> <select placeholder="Enter name"> What's the difference? (Which one's stronger?) 回答1: Attribute placeholder is a standard HTML5 attribute and data-placeholder is just data- HTML5 attribute used by some javascript plugin. Without the external js plugin, data-placeholder does nothing while placeholder works with the only requirement of

Clear form inputs and keep placeholder

由 自古美人都是妖i 提交于 2019-12-06 16:46:35
问题 I know that using this jQuery tool $('.myDiv input').each(function () { $(this).val(""); }); clears my form but can anyone help me with some suggestions how to keep placeholders of the input? Right now the placeholders appears only after I focus on at least one input. 回答1: jQuery function Clear() { $('.myDiv input').each(function () { $(this).val(""); x=1; }); $('.myDiv input').first().focus(); } Working Demo http://jsfiddle.net/s8vPG/2/ 来源： https://stackoverflow.com/questions/16442349/clear

HTML5 placeholder attribute: Chrome doesn't line-wrap in textareas

由 时光毁灭记忆、已成空白 提交于 2019-12-06 16:21:14
I'm trying to use a couple of these newfangled HTML5 form attributes, and the placeholder attribute seemed to be a good match to get the magic going. It works pretty good, but Chrome insists to present the whole placeholder text on one line if the textarea is to small. Other browsers like Firefox or rekonq (the only other WebKit browser that I have at my disposal ATM) line-wrap the text. While the spec talks about linefeeds being forbidden in the placeholder attribute, it says nothing against line wrapping. Is this just something that is for the implementor to decide, is it a Chrome bug, or

Input Placeholder text becoming input value when hiding and showing elements in angularjs view using IE

由 ￣綄美尐妖づ 提交于 2019-12-06 14:43:09
We have inputs with placeholders like this: <input placeholder="Search..." type="text" /> Everything is fine in chrome/firefox, but in IE sometimes when we are hiding and showing the element, the placeholder becomes the input value -- you click on the input and your cursor is after the 3 dots of "Search... (blinking cursor here) " The inputs are in an angularJS ngView and we use ngShow and ngHide to show/hide them based on various logic. When the view first renders you can click in the input and it removes the placeholder as expected, but after the input is hidden and then shown once or twice
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